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ThesisItem Open Access STUDIES ON THE POPULATION DYNAMICS OF Trichoderma spp. IN SOIL AND ITS ANTAGONISTIC ACTIVITY AGAINST Fusarium oxysporum f. sp. lentis.(SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, MEERUT- 250110 (U.P.),, 2021) AISHWARYA S.; Dr. Ramji SinghDEPARTMENT OF PLANT PATHOLOGY SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, MEERUT-250110 (U.P.) INDIA Name: Aishwarya S. I.D. No: 4869 Advisor: Dr.Ramji Singh Degree programme: M.Sc Professor Thesis title: Studies on the population dynamics of Trichoderma spp. in soil and its antagonistic activity against Fusarium oxysporum f. sp. lentis. ABSTRACT Lentil is an important pulse crop cultivated all across the globe. It is a major pulse crop in terms of its nutrient composition and is consumed by a large population all around the world. Fusarium oxysporum f. sp. lentis is a major pathogen of lentil causing wilt disease in the crop. The yield losses caused due to the disease may even reach upto 100 percent depending on the severity of infection. Trichoderma spp. are an effective biocontrol agent for the management of pathogens affecting various crops. The present study was conducted to understand the population dynamics of the bioagent in soil and to study the antagonistic activity of the bioagent against fusarium wilt of lentil under pot conditions. For the purpose SV3 strain of T. harzianum was used. The strain was multiplied on five different substrates viz. bajra grains, wheat grains, wheat straw, cotton cake and neem cake + cow dung (1:9) mixture, before applying to the soil. The neem cake + cow dung mixture proved to be the best in supporting the growth and the viability of the bioagent in soil for a longer time. The wheat grains were found to be the next best substrate for maintaining a good population dynamics of the bioagent followed by that of bajra grains. The bajra grains and the wheat grains as substrate for SV3 reduced the wilt disease incidence of lentil significantly. Neem cake + cow dung was found to be the next best substrate in terms of reducing the disease incidence in the crop. In addition to maintaining a good population count, soil application of SV3 mass multiplied on neem cake + cow dung (1:9) mixture also significantly increased the yield, shoot length, root length, plant height and fresh weight of lentil as well. This was followed by soil application of SV3 mass multiplied on bajra grains and wheat grains. The cotton cake and wheat straw exhibited a poor performance as substrates for SV3 strain of T. harzianum in terms of maintaining population levels of the bioagent in soil and reducing the wilt incidence. The biometric parameters of lentil plants also didn’t show much improvement in soil applied with SV3 mass multiplied on cotton cake and wheat straw. Overall, it was seen that the substrates on which the bioagent was multiplied had a significant effect over the population dynamics of the bioagent in soil, wilt incidence and the biometric parameters of the crop. Thus, the performance of the bioagent could be improved with the use of substrates suitable for its growth and multiplication. (Aishwarya S.) (Ramji Singh)ThesisItem Open Access Studies on management of Sclerotinia stem rot (Sclerotinia sclerotiorum) of chickpea (Cicer arietinum).(SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, MEERUT- 250110 (U.P.),, 2021-12) AKANKSHA; Dr. Prashant MshraDEPARTMENT OF PLANT PATHOLOGY SARDAR VALLABHBHAI PATEL UNIVERSITY OF AFRICULTURE & TECHNOLOGY, MEERUT-250110 (U.P.) INDIA Name: Akanksha Advisor: Dr. Prashant Mishra (Professor) Id. No: 3240/19 Department of Plant Pathology Degree Progamme: M.Sc. (Ag.) Plant Pathology Thesis title: Studies on management of Sclerotinia stem rot (Sclerotinia sclerotiorum) of chickpea (Cicer arietinum). ABSTRACT Chickpea (Cicer arietinum Linn.) is known in this country since ancient times. Chickpea belongs to family Leguminosae & genus Cicer. It is one of the oldest pulses known and cultivated in Asia and Mediterranean. The center of origin of chickpea is stated to be eastern Mediterranean. Chickpea is a major pulse crop and accounts for nearly 75 per cent of the total pulse production in the world. In India,chickpea is grown on an area of 9.93 mha with a production of 7.59 mt and productivity is 960kg/ha. In UP it is grown over 589 thousand hectares area with annual production of 596.7 thousand tonnes and productivity of 1013 kg ha-1, respectively.Chickpea is prone to attack by various diseases like, Fusarium wilt (Fusarium oxysporum f. sp. ciceri), dry root rot (Rhizoctonia bataticola), collar rot (Sclerotium rolfsii), wet root rot (Rhizoctonia solani), Aschochyta blight and Sclerotinia stem rot (Sclerotinia sclerotiorum). Among these, stem rot caused by Sclerotium sclerotiorum is gaining importance. This disease is a serious threat, the extent of losses from 20 to 46 per cent at pod bearing stage of the crop and the incidence of disease varied from 18 to 32 per cent. The infected plant become pale in colour with white puff mycelial growth on the stem, later the plant dries and ultimately dies.In all the tested fungicides viz:, Thifluzamide 24%SC, Thiophanate methyl 70% WP, Hexaconazole, Propiconazole 13.9% + Difenconazole 13.9% EC, Carbendazim 12% + Mancozeb 64% that is completely inhibited (T5,T6,T7,T8) Sclerotinia sclerotiorum mycelial growth at 48hrs, 96hrs and 144hrs. at all three concentrations examined, 50ppm, 100ppm, and 150ppm. Among all the tested bio-agents in vitro, Trichoderma harzianum was found highly effective with maximum inhibition percent of 76.30% followed by Trichoderma viride with inhibition percent of 71.85% against the mycelial growth of the pathogen in vitro. Among all the crops sown at different dates the maximum disease incidence (47.33%) was recorded in 25th November sown crop and least disease incidence was recorded in 25th October sown crop (20.33%). Maximum grain yield 10.5 qutl./ha was recorded in 25th October followed by 9 qntl/ha While minimum yield 5.66 qntl/ha was recorded in 25th November sown crop . In experiments dealing with the intigrated management of the pathogen at technology park in the university campus the soil application of Neem Cake highly effective with the lowest per disease incidence of 6.57% was recorded followed by Seed bio-priming with Trichoderma harzianum with disease incidence of 7.44%.The maximum yield/ha and test weight was recorded in Soil application of Neem Cake of 21.96 Q/ha and 19.88gm respectively followed by Seed bio-priming with Trichoderma harzianum of 18.89 Q ha-1 and 19.05g respectively. (Prashant Mishra) (Akanksha) Advisor AuthorThesisItem Open Access EFFECT OF POLYHALITE A MULTINUTRIENT NATURAL MINERAL ON SOIL FERTILITY AND CROP PERFORMANCE IN POTATO VARIETY KUFRI CHIPSONA-1(SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, MEERUT- 250110 (U.P.),, 2021-09) MAHIMA PAREEK; Dr. U. P. Shahi125 ABSTRACT Name : Mahima pareek Id No. : 4876 Year of admission : 2019-20 Degree : M.Sc. SSAC Major : Soil Science and Agricultural chemistry Minor : Agronomy Thesis title : Effect of polyhalite as a multinutrient natural mineral on potato variety kufri chipsona-1. Advisor : Dr. U.P. Shahi, Associate Professor Soil Science and Agricultural Chemistry Degree Awarding : Sardar Vallabhbhai Patel University of Agriculture & Technology,Meerut- University 250110 The present investigation was conducted on potato crop in winter (Rabi) season of 2019-20 at the Crop Research Centre, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut-250110. The soil of experimental field was sandy loam in texture and slightly alkaline in reaction. The soil was low in available nitrogen, medium in phosphorus, potassium, sulphur. The treatments consisted The experiment consisting 13 treatments viz T1(RDF NPKS only),T2(RDF NP only) ,T3 (RDF NPS only ) , T4(RDF NPK only),T5 (RDF NP+ 50%POLY-4),T6(RDF NP +100% POLY-4),T7(RDF NP +150%POLY-4),T8(RDF NP+ 50% MOP+50% S equal to T5 by Bentonite),T9(RDF NP+ 100%MOP+100% S equal to T6 by Bentonite),T10 (RDF NP+ 150%MOP+150% S equal to T7 by Bentonite),T11(RDF NP +25% MOP + 75% POLY-4),T12 (RDF NP and 50% K by MOP + 50% by POLY-4),T13(RDF NP+ 75% K by MOP + 25%POLY-4) was laid out in randomized block design with three replication. Split dose of N, the full dose of P and K at the time of sowing was applied. All the growth attributes ,yield attributes, nutrient content and uptake, soil fertility level and economic feasibility were assessed. The findings of experiment revealed that the growth attributes like plant height, compound leaves per plant, chlorophyll content and yield attributes i.e. tuber yield was maximum with application of T11 (RDF NP+25% K by MOP+75% K by poly4) followed by RDF NP+50% K by MOP+50% by Poly4(T12).Polyhalite was superior then other source like MOP alone.Soil fertility level in respect to applied nutrients and other chemical properties was improved with application of polyhalite with the combination of MOP and also maintain the fertility level with higher yield. The highest net return and B:C ratio was obtained in T11 with the application of RDF NP+25% K by MOP+75% K by Poly4. Balanced nutrient application in a right amount, right method and right time is 126 found to be better in improving the every aspect of potato cultivation including the soil fertility. (U.P. Shahi) (Mahima pareek) Advisor AuthorThesisItem Open Access STUDY OF MACRO AND MICRO NUTRIENT AVAILABILITY IN SOILS OF SHAMLI KVK(SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, MEERUT- 250110 (U.P.),, 2021-10) ARUNIMA CHAKRABORTY; Dr. Yogesh KumarName- Arunima Chakraborty Id No- 4875 Major – Soil Science & Agricultural Chemistry Minor- Agronomy Advisor – Dr Yogesh Kumar Degree: M. Sc. (Soil Science and Agricultural Chemistry) Thesis Title - Study of Macro and Micro nutrient availability in soils of Shamli KVK. ABSTRACT Study of Macro and Micro nutrient availability in soils of Shamli KVK was conducted during 2020-21. Soil samples were collected and brought to the laboratory of Department of soil Science and Agricultural Chemistry, SVPUAT, Meerut. Results of study indicate that the texture of farm soil was sandy loam. Soils are slightly alkaline to moderately alkalin in nature with low EC and poor OC (%). Perusal of data also indicates that infiltration rate and hydraulic conductivity of farm soil is moderate to moderately rapid with low water stable aggregate. Soils are low in available nitrogen and medium to high in phosphorus and potassium. The Ca/Mg ratio of 100 % of farm soil was favorable. Ratio of Mg/K was within favorable limits. Iron, manganese, copper and zinc were found in sufficient to more than sufficient range. Soil pH was significantly and positively correlated with manganese (r = 0.226), non-significantly and negatively with electrical conductivity (r= -0.037), positively with nitrogen (r =0.220), phosphorus (r =0.310), negatively with potassium (r = -0.251), and with organic Carbon (r =0.190), Cu (r =0.362), Fe (r =-0.110), Zn (r = -0.096), and significantly and positively with SAR (r =0.042) and non-significantly positive relations with ESP (r=0.045). A positively correlated pH with sand (r = 0.247), silt (r = 0.290), and negatively correlated with clay (r = -0.217), bulk density (r = -0.218), particle density (r = -0.064), porosity (r = -0.064), infiltration rate (r = -0.008), hydraulic conductivity (r = -0.009), and water stable aggregate (r = -0.163). Physical properties of the soils of study area were not ideal for growing crop satisfactorily. Based on the study of characterization of soil and fertility status, the soils of study area were found poor in soil health with several limitations and needs special managements to improve soil health and crop production. Dr Yogesh Kumar Arunima Chakraborty Chairman Advisory Committee AuthorThesisItem Open Access Effect of FYM and Sulphur Application on Nutrient Availability in Soil Growth and Yield of Urdbean(SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, MEERUT- 250110 (U.P.),, 2021-09) VIDHU DIXIT; Dr. S.P. SinghABSTRACT Name: Vidhu Dixit Id. No.: 4873 Department: Soil Science & Agricultural Chemistry Degree: M.Sc. (Ag.) Major: Soil Science & Agricultural Chemistry Minor: Agronomy Thesis Title: “Effect of FYM and Sulphur Application on Nutrient Availability in Soil, Growth and Yield of Urdbean” A field experiment was conducted to assess effect of FYM and sulphur on nutrient availability in soil and growth at Crop Research Centre of Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut (U.P.), during kharif season of 2020. In the seven treatments consistent application of FYM and sulphur viz., Control, RDF, RDF + FYM @ 2.5 t ha-1, RDF + S @ 10.0 kg ha-1, RDF + FYM @ 5.0 t ha-1, RDF + S @ 20.0 kg ha-1 and RDF + FYM @ 2.5 t ha-1 + S @ 10.0 kg ha-1 were tested in RBD with three replications. Shekhar-2 was grown as a test variety. The results revealed that the combined application of FYM and sulphur exhibited significant influence on the growth, yield attributes and yields of urdbean as compared to control during year of experimentation. Significant improvement in growth parameters viz. plant height, number of branches plant-1, number of trifoliate leaf plant-1, dry matter accumulation (g plant-1), number of root nodules plant-1, dry weight of nodules (mg plant-1), protein content, 1000-grain weight, nutrient content and grain yield was recorded with the application of RDF + FYM @ 2.5 t ha-1 + S @ 10.0 kg ha-1, which established its superiority over rest of the FYM and sulphur treatments. The total nitrogen, phosphorus, potassium and sulphur uptake (94.53, 15.63, 61.31 and 9.23 kg ha-1, respectively) by urdbean crop was also highest with the application of RDF + FYM @ 2.5 t ha-1 + S @ 10.0 kg ha-1 and 91.63 and 42.06% increase in grains and straw yield of urdbean was recorded in the same treatment. The application of RDF + FYM @ 2.5 t ha-1 + S @ 10.0 kg ha-1 resulted in higher protein yield (274.58 kg ha-1). Thus the application of RDF + FYM @ 2.5 t ha-1 + S @ 10.0 kg ha-1 was found better for sustainability of urdbean. (S.P. Singh) (Vidhu Dixit) Advisor AuthorThesisItem Open Access Collection and Characterization in Soils of KVK Moradabad(SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, MEERUT- 250110 (U.P.),, 2021-09) SACHIN PAL; Dr. Yogesh KumarName- Sachin Pal Id No- 4872 Major – Soil Science & Agricultural Chemistry Minor- Agronomy Advisor – Dr Yogesh kumar Degree: M. Sc. (Soil Science and Agricultural Chemistry) Thesis Title - Collection and Characterization in Soils of KVK Moradabad ABSTRACT Study on the Collection and Characterization in Soils of KVK Moradabad was conducted during 2020-21. Soil samples were collected and brought to the laboratory of Department of soil Science and Agricultural Chemistry, SVPUAT, Meerut. Results of study indicate that the texture of farm soil was sandy loam. Soils are neutral in nature with very low EC and poor OC (%). Perusal of data also indicates that infiltration rate and hydraulic conductivity of KVK soil is moderate to moderately rapid with low water stable aggregate. Soils are low in available nitrogen and medium in phosphorus and potassium. The Ca/Mg ratio of 52 % of KVK soil was favorable while ratio of remaining 48 % soil was below favorable. Ratio of Mg/K was within favorable limits. Iron, manganese, copper and zinc were found in sufficient to more than sufficient range. Soil pH was strongly positively and negatively correlated with sand (r = 0.943), Infiltration rate (r = 0.899), hydraulic conductivity (0.889) and silt (r = -0.735) clay (r = -0.717). Soil pH negatively significant with water aggregate stability (r = -0.414). While soil pH was non-significant positive bulk density (r = 0.169) and negatively particle density (r = -0.236), porosity (r = -0.302). Physical properties of the soils of study area were not ideal for growing crop satisfactorily. Most of the soils were susceptible to erosion as they have silt / clay ratio, clay ratio, modified clay ratio more than the threshold value (>0.4, 3.44 and 6.9, respectively) and critical level of soil organic matter below the threshold value (<3.34, respectively). Based on the study of characterization of soil and fertility status, the soils of study area were found poor in soil health with several limitations and needs special managements to improve soil health and crop production. Dr Yogesh Kumar Sachin Pal Chairman Advisory Committee AuthorThesisItem Open Access “Effect of Zn and B application on nutrients availability in soil, their uptake and productivity of lentil in western U.P.)”(SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, MEERUT- 250110 (U.P.),, 2021-09) Praveen Kumar Yadav; Dr. Satendra KumarName: Praveen Kumar Yadav Id. No.: 4871 Major: Soil Science and Agricultural Chemistry Minor: Agronomy Year of Admission: 2019-20 Degree Programme: M.Sc. (Ag.) Thesis Title: “Effect of Zn and B application on nutrients availability in soil, their uptake and productivity of lentil in western U.P.)” Advisor: Dr. Satendra Kumar ABSTRACT A field experiment was conducted during rabi seasion 2020 at Crop Research Center of Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.) to evaluate the Effect of Zn and B application. The area situated at a latitude of 290 4’ N and longitude of 770 42’ E with an elevation of 237 m above mean sea level. The soil of experimental field was well drained, sandy loam in texture, alkaline in reaction (7.4), low in available nitrogen and sulphur, medium in available phosphorus potassium, B in low and Zn in medium with an electrical conductivity of 0.34 dSm-1. Ten treatments comprising control, Effect of Zn and B application were tested in RBD with three replication. The crop was grown with recommendation package and practices for lentil with exception of zinc and boron application which was variable as per treatments. The data on growth, yield and its contributing traits content and uptake of nutrients at harvest stage along with available N, P, K, Zn, B and bulk density of soil were estimated as per the standard procedure. The experimental results revealed that growth parameter (plant population, plant heght-1, and number of branches plant-1, nodules and their dry weight), yield attributing traits viz. number of pods plant-1, number of grain plant-1, grain yield plant-1, test weight and biological yield, grain yield, straw yield and content and uptake of N, P, K, Zn, S and B in lentil differ significantly among different treatments. Growth parameter was significantly better in the treatment T10 (RDF + Boron 2 kg ha-1 + Zinc 5 kg ha-1). The highest grain yield was recorded in T10 RDF + Boron 2 kg ha-1 + Zinc 5 kg ha-1 was applied with Zn and B. This treatment was statistically at par with T8. Growth and yield attributing characters were comparatively higher in T10. Available nutrients in soil and physico-chemical properties of soil after harvest of lentil were variable under different treatments. From the study it may be concluded that the application of RDF + Boron 2 kg ha-1 + Zinc 5 kg ha-1 with Zn and B (T10) gave best results (Grain yield increased by 26.7%, 25.7%, 21%, 22.9%, 17.2% and 59.1% over T1, T3, T4, T5, T6 and T1, respectively) and proved to be beneficial for rabi lentil. Application of RDF + Boron 2 kg ha-1 + Zinc 5 kg ha-1 was applied with Zn and B (T9) also gave better results. The balance and combine use of Zn and B along with N, P, K and S in lentil improved the growth attributes, total uptake of nutrients along with maintaining the soil fertility. (Satendra Kumar) (PraveenKumar Yadav) Advisor AuthorThesisItem Open Access Effect of Novel Sources of Nutrients, their Dose and Mode of Application on Growth, Yield and Quality of Indian Mustard [Brassica juncea (L.) Czern & Coss](SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, MEERUT- 250110 (U.P.),, 2021-10) SANDEEP KUMAR VERMA; Dr. N. S. RanaABSTRCT In order to evaluate the“Effect of Novel Sources of Nutrients, their Dose and Mode of Application on Growth, Yield and Quality of Indian Mustard [Brassica juncea (L.) Czern & Coss]” the investigation was carried out on well drained sandy clay loam soil, low in organic carbon and available nitrogen, medium in available phosphorus, potassium, sulphur and zinc and moderately alkaline in pH during 2020-21 at crop research centre of SVPUA&T, Meerut (U.P.) Novel nutrient sources and their modes of applications with 12 treatments consisting of control, basal application of recommended 100% NPK&S (120:40:40:20), 75% NPK&S (90:30:30:15) + NPK (18:18:18) 0.5% spray + NPK Consortia seed treatment (50 ml in 0.6 litre water 6 kg-1 seed) + Bio-stimulant (625 ml ha-1) + Nano N (4 ml l-1) + Nano Zn (10 ml l-1) in various combinations were attempted on mustard variety Pusa Vijay in RBD with three replications. The results of the study revealed that mustard grown with 75% NPK&S + Zn + Biostimulants + Nano N + Nano Zn spray attainted significantly better growth as reflected by taller plants (200.3cm), more no. of primary branches plant-1 (7.5), secondary branches (17.3), tertiary branches (4.2) higher dry matter accumulation g plant-1 (91.4), CGR (9.6 g m-2 day-1) and RGR (0.004 g g-1 day-1) recorded at harvest over RDF as also noticed by Prasad et al. (2013). Yield attributes and yields viz. no. of siliquae plant-1 (255.4), number of Seeds silique-1 (12.5), test weight (5.2 g), grain yield (22.4 q ha-1) and straw yield (102.5 q ha-1) were also higher in the crop as against respective value of 240.9, 12.2, 4.5, 18.6 & 69.2 with 100% NPK&S and 206.0, 12.1, 4.1, 13.0 & 55.6 with control. The crop contained 4.1% N, 0.72% P, 1.0% K, 0.40% S and 74.2 ppm Zn in grain and 0.52% N, 0.29% P, 1.62% K, 0.18% S and 65.3 ppm Zn in straw. Such crop accumulated 144.7 kg N, 45.6 kg P, 188.1 kg K, 30.3 kg S and 835.5 g Zn ha- 1. Application of 75% NPK&S with Nano N spray, Nano N spray + Nano Zn spray, NPK Consortia + Nano Zn spray, NPK (18:18:18) 0.5% spray, NPK (18:18:18) 0.5% spray + Bio-stimulants spray and Zn + Bio-stimulants spray + Nano N + Nano Zn spray worked synergistically and increased grain yields by 2.1, 4.3, 15.6, 0.5, 7.0 and 20.5% respectively over 100% NPK&S. Respective increase in oil yield was 17.2, 40.3, 123.7, 9.5, 57.6 and 156.4 kg ha-1over 100% NPK&S. Similar result was also put forward by Aziz et al. (2016). Nutrient use efficiency i.e. agronomic efficiency for N, P & K (10.4, 31.2 & 31.2 kg of grain in yield increase kg-1of nutrient applied), physiological efficiency for N, P & K (11.8, 56.0 & 13.0 kg of yield increase kg-1 of nutrient absorbed) and partial factor productivity for N, P & K (24.9, 74.6 & 74.6 kg of grain kg-1 of nutrient applied) was also better under treatment. Soil organic carbon (0.45 %), available N (155.3 kg ha-1), available P (20.9 kg ha-1), available K (130.8 kg ha-1), available S (14.7 kg ha-1) available Zn (0.81 mg kg-1), population of bacteria (0.77 No.×106 cfu g-1), fungi (0.64 No.×104 cfu g-1) & actinomycetes (0.59 No.×103 cfu g-1)) was also higher with the treatment. The crop required an investment of ₹ 37055 ha-1 and fetched net return of ₹95800 with B:C ratio of 3.6 with 100 % NPK&S + nano Zn spray. Similar trend was observed by Kumar et al. (2014). Thus, the mustard crop grown with application of 100 % NPK&S + nano Zn spray had attained better growth (plant height, no. of branches, dry matter accumulation, CGR, RGR, yield attributes (no. of siliquae, siliqua length, no. of seed silique-1, test weight) yield (grain, straw and biological), nutrient use efficiency, nutrient content and uptake, oil content and yield, fetched higher net returns with higher B:C ratio. Soil physico-chemical (bulk Name: Sandeep Kumar Verma Id. No.: 4812 Degree Programme: M. Sc. Year of Admission: 2019-20 Major: Agronomy Minor: Soil Science and Agricultural Chemistry Advisor. N. S. Rana Thesis Title: “Effect of Novel Sources of Nutrients, their Dose and Mode of Application on Growth, Yield and Quality of Indian Mustard [Brassica juncea (L.) Czern & Coss]” density, particle density, EC, pH, organic carbon, available nutrient N, P, K, S and Zn) and biological properties (bacteria, fungi & actinomycetes) were also better under the treatment. (N. S. Rana) Advisor (Sandeep Kumar Verma) AuthorThesisItem Open Access Residual effect of applied nutrients to Potato on succeeding spring Maize (Zea Mays L.)(SARDAR VALLABHBHAI PATEL UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, MEERUT- 250110 (U.P.),, 2021-12) SHEKHAR SINGH; Dr. U.P. ShahiABSTRACT Name : Shekhar Singh Id No. : 3233 Year of admission : 2019-20 Degree : M.Sc.(Ag.) Major : Soil Science and Agricultural chemistry Minor : Agronomy Thesis title : Residual effect of applied nutrients to Potato on succeeding spring Maize (Zea Mays L.) Advisor : Dr. U.P. Shahi, Associate Professor Soil Science and Agricultural Chemistry Degree Awarding : Sardar Vallabhbhai Patel University of Agriculture & University Technology, Meerut- 250110 The present investigation was conducted on maize crop in spring season of 2019-20 at the Crop Research Centre, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut-250110. The soil of experimental field was sandy loam in texture and slightly alkaline in reaction. The soil was low in available nitrogen and sulphur, medium in phosphorus, potassium. The experiment consisting 13 treatments in previous potato crop viz T1 (RDF NPK and S (Common fertilizers), T2(RDF N and P (no-K, no-S) (Common fertilizers), T3 (RDF NP and S (no-K)( Common fertilizers), T4(RDF NP and K (no-S)( Common fertilizers),T5 (RDF NP and 50% of RDF K by POLY-4), T6 (RDF NP +100% POLY-4),T7 (RDF NP and 150% of RDF K by POLY-4),T8(RDF NP+ 50% of RDF K by MOP+50% of RDF S equal to T5 by Bentonite),T9 (RDF NP+ 100% of RDF K by MOP+100% of RDF S equal to T6 by Bentonite ), T10(RDF NP+ 150% of RDF K by MOP+150% of RDF S equal to T7 by Bentonite), T11 (RDF NP and 25% K by MOP + 75% by POLY-4),T12 (RDF NP and 50% K by MOP + 50% by POLY-4),T13(RDF NP and 75% K by MOP + 25% by POLY-4) was laid out in randomized block design with three replication. The maize was grown in the same layout. Only 75% of recommended dose of N & P was applied in maize crop to observe the residual effect of previously applied nutrients. All the growth attributes yield attributes, nutrient content and uptake, soil fertility level and economic feasibility were assessed. The findings of experiment revealed that the growth attributes like plant height, functional leaves per plant, chlorophyll content (SPAD Value) and yield attributes i.e. grain yield was maximum with application of RDF NP and 150% of RDF K by POLY-4 (T7) followed by RDF NP and 25% K by MOP + 75% by POLY-4 (T11) applied in previous crop. Polyhalite was superior over common fertilizer MOP. Soil fertility level in respect to residual nutrients and other chemical properties was improved with application of POLY-4 (polyhalite) with the combination of MOP and also maintain the fertility level with higher yield. The highest net return and B:C ratio was obtained in T7 with the application of RDF NP and 150% of RDF K by POLY-4. Residual effect varied due to source of potassium application and polyhalite was found better than MOP. Super optional application of K to preceding crop resulted in more residual effect therefore it may be concluded that nutrient management should be consider on cropping sequence basis rather than single crop and polyhalite may be a good source for potassium. (U.P. Shahi) (Shekhar Singh) Advisor Author
